Results 51 to 60 of about 101 (82)
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Performance analysis of an FFH/BFSK linear-combining receiver against multitone jamming
IEEE Communications Letters, 1998A computationally efficient bit-error rate (BER) expression for a fast frequency-hopping binary frequency-shift-keying (FFH/BFSK) spread-spectrum system is derived based on Taylor-series expansion of the central differences. The FFH system employs a soft-decision linear-combining receiver against the worst-case band multitone jamming (MTJ) and additive
Kah Chan Teh, Kwok H. Li, Alex C. Kot
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Error probability for FH/MDPSK in multitone jamming, fast Rician fading, and Gaussian noise
IEEE Transactions on Communications, 1995A method is presented for the calculation of M-ary DPSK error probability in partial-band multitone jamming and white gaussian noise. Both unfaded and faded signals and jamming tones may be analyzed by the method. The fading considered is frequency-flat, time selective, Rician fading.
L J Mason
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Performance study of a maximum-likelihood receiver for FFH/BFSK systems with multitone jamming
IEEE Transactions on Communications, 1999We derive the optimum structure of a maximum-likelihood (ML) receiver for a fast frequency-hopped binary frequency-shift-keying (FFH/BFSK) spread-spectrum (SS) communication system operating in the presence of multitone jamming (MTJ) and additive white Gaussian noise (AWGN). It is shown that the side information of noise variance, signal tone amplitude,
Kah Chan Teh, Alex C. Kot, Kwok H. Li
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Anti-Jam Performance of Fast Frequency Hopped MFSK with Coding against Worst-Case Multitone Jamming
MILCOM 1987 - IEEE Military Communications Conference - Crisis Communications: The Promise and Reality, 1987Fast frequency hopped (FFH) MFSK with coding can significantly improve anti-jam (AJ) performance against partial band jamming. Multitone (MT) jamming has been shown to be the most effective partial band jamming technique, particularly against higher order M-ary FSK modulation.
B. H. Tanaka, R. L. Yuan
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The Performance of M-ary FH-DPSK in the Presence of Partial-Band Multitone Jamming
IEEE Transactions on Communications, 1982Using a geometric approach, the performance of M -ary FH-DPSK in the presence of partial-band multitone jamming is evaluated. The optimal jamming strategy is determined as a function of the number of signaling levels M and the ensuing results are used to determine worst case bit error probability performance as a function of this same parameter.
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The performance of low density parity check coded FFH systems under multitone jamming
2011 International Conference on Computer Science and Service System (CSSS), 2011Fast frequency hopping (FFH) is a very effective way to combat jamming. In this paper, low density parity check (LDPC) code is combined with diversity-combining techniques to enhance the performance of FFH systems under band multitone jamming (BMTJ). The optimum maximum-likelihood (ML) combining which needs perfect side information (SI), and various ...
Jingke Dai, Jingming Hu
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Optimization of a hybrid SFH/DS MFSK link in the presence of worst case multitone jamming
IEEE Transactions on Communications, 1995The performance of a hybrid slow frequency hopped direct sequence multiple frequency shift keyed (SFH/DS MFSK) communication link in the presence of partial band multitone jamming is considered. The communication signal is characterized by a DS-spread MFSK signal bandwidth that may exceed the FH slot spacing, and the signal consists of multiple M-ary ...
Maureen A. Laxpati, Jeffrey W. Gluck
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Performance analysis of an FFH/BFSK self-normalising receiver under multitone jamming
IEE Proceedings - Communications, 1998Analytical expressions for bit-error probability are derived for a fast frequency-hopping binary frequency-shift-keying (FFH/BFSK) spread-spectrum (SS) communication system based on Taylor-series expansion. The FFH system employs a soft-decision self-normalising receiver against the worst-case multitone jamming (MTJ) and additive white Gaussian noise ...
K.C. Teh, K.H. Li, A.C. Kot
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Acquisition of DS/FH spread spectrum TTC signals in the presence of multitone jamming
IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, 2010The paper investigates the acquisition performance of DS/FH TTC signals in the presence of multi-tone (MT) jamming. A model describing the impact of MT jamming on signal acquisition is proposed and expressions of both detection and false alarm probabilities are mathematically formulated.
Meng Shengyun +3 more
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Order statistics diversity combining in worst case noise and multitone jamming
MILCOM 91 - Conference record, 2002A previously known diversity combining method which uses order statistics (OS) has been investigated in both noise and multitone jamming. Based on the results of this investigation, a concatenation of order statistics and normalized envelope detection (NED) is proposed.
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